This multidisciplinary project (2017-2020) involving the Marine and Freshwater Research Centre (MFRC), GMIT, the Centre for Water Resources Research (CWRR) and the Earth Institute, UCD, Wageningen University and Carey Building Contractors is funded by the Environmental Protection Agency (EPA). The project will inform the development and implementation of policy through improved understanding of Microplastic (MP) sources, pathways and environmental fate in freshwater systems in Ireland and make recommendations for monitoring of MPs.